Studies on the acrosome. IX. Course of acrosome reaction in the starfish.
D000371:Agglutination; D000818:Animals; D004447:Echinodermata; D005260:Female; D066298:In Vitro Techniques; D008297:Male; D008854:Microscopy, Electron; D008858:Microscopy, Phase-Contrast; D009940:Organoids; D010063:Ovum; D013094:Spermatozoa / Q000166:cytology*